Malicious PDF — malware analysis report

Static analysis result for SHA-256 06e4dead66661f25…

MALICIOUS

PDF

81.2 KB Created: 2020-12-15 21:27:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: b53b8519ecfecfd62d86157d5165c705 SHA-1: 2a286b947e7dbd609dca7b13e8ceab846681f315 SHA-256: 06e4dead66661f2548495ddc76569e017a82d8c36b60e402dd9f1e93ee580609
214 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF file contains numerous links to external websites, many of which are part of a link farm designed to manipulate search engine results. One prominent URL, 'https://gettraff.ru/wb?keyword=amazon%20prime%20movies%20india', suggests a lure related to Amazon Prime movies, likely intended to deceive users into visiting malicious sites. The ClamAV detection and ML classifier strongly indicate malicious intent, consistent with a phishing or malware distribution campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://gettraff.ru/wb?keyword=amazon%20prime%20movies%20india In PDF document text
    • https://giridoxaxe.weebly.com/uploads/1/3/4/7/134703098/8b2145f3a36abb3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365608/normal_5f8b750395ee6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4424933/normal_5f9c300a41aa3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4445871/normal_5fc1c82d057e5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417029/normal_5fbbda4f2ae96.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4468823/normal_5fc896bd9b6a2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4451368/normal_5fa8cf2b88562.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://static1.squarespace.com/static/5fc0b7b7bf71053ccb0f47f0/t/5fd18519880fa23343cc3734/1607566618721/social_video_viral_video_song.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0deee1c8c74131431a276/t/5fc502f3a97599144e96ccb3/1606746869422/statistics_unit_3_test_answer_key.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc013fe3398ff751529adbc/t/5fc1811e08845d0924c38ec1/1606517026245/the_walking_dead_book_22.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fcf05ae84361f7a2d9e6436/t/5fd09382cb6bfe602c535cce/1607504773249/blush_maze_pillow.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f5e4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF5E4 4880 bytes
SHA-256: 509e9dad8edc87446da91d32878e25a79d1b618c7a8ebbe2d4dfeeb657286694
font_01_sfnt_off00010655.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10655 10752 bytes
SHA-256: e0836e74aff99be270c9a654a5b5aaa903575162ffc0b7f3cabba9b648773c5c
font_02_sfnt_off00012a2b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12A2B 4324 bytes
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378

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